vacuum leak

Sep 27, 2011 3 Replies
T
1992 Plymouth - There's a vacuum leak in my brake pedal, which I can hear when I push hard on it. Is it likely to be just a gasket or hose, or something expensive? The car is old so I might junk it, but I want to get an idea of how much this should cost.

Thanks.



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S

If you hear the leak when you HOLD the pedal down then it is the vacuum booster. However if you only hear a whoosh sound when you step down on the pedal fast then that is just the air inlet and isn't a problem.

Depending on model/engine the boosters can run from 20 - 200 bucks. Labor all depends on the same.

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M

could also be a bad check valve on the booster, or a leaky hose.

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N

leaky hose would hiss all the time, wouldn't it?

My money is on booster or check valve.

nate

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